I prefer verdana.
Any block type, easy to read font will work fine. Avoid using any script font or a font that has cutesy shaped letters.
Any advertising material that the potential customer has to put ANY effort in reading, WON'T get read.
To draw attention to an area, just use a larger size, bold, or colored lettering.
KISS
Keep
It
Simple
Stupid

The stupid is not meant as anything personal, it's an advertising saying.

Originally posted by Rustic Goat I prefer verdana.
Any block type, easy to read font will work fine. Avoid using any script font or a font that has cutesy shaped letters.
Any advertising material that the potential customer has to put ANY effort in reading, WON'T get read.
To draw attention to an area, just use a larger size, bold, or colored lettering.
KISS
Keep
It
Simple
Stupid

The stupid is not meant as anything personal, it's an advertising saying.

As for type of fonts, use something simple. Also, no more than two fonts should be used in an add. Use one for your headlines or things you want to call attention to, and one for the body of your ad.

WHITE SPACE is good. It lets the eye relax while reading. You're better off to simplify your message and use fewer words. Use a picture, or short description. Ask and answer a question. Don't list every single service you offer, people generally won't read through everything anyways, it's just distracting.